" tediousness "

1: as in boredom, tedium;

•  Synonyms : 

•  blahs,

•  boredom,

•  drabness,

•  dullness,

•  ennui,

•  restlessness,

•  tedium,

•  tiresomeness,

•  weariness,

•  wearisomeness,

•  uniformity,

•  humdrum,

•  monotone,

•  monotonousness,

•  monotony,

•  sameness

•  Antonyms : 

•  diversity,

•  multiplicity,

•  variety,

•  variability,

•  variation,

•  absorption,

•  engagement,

•  engrossment,

•  enthrallment,

•  fascination,

•  grip,

•  interest,

•  intrigue,

•  involvement,

•  animation,

•  enlivenment,

•  excitement,

•  invigoration,

•  stimulation

1: causing weariness, restlessness, or lack of interest;

  * e.g., " ... a long and tedious staff meeting "

•  Synonyms : 

•  arid,

•  boring,

•  colorless,

•  drab,

•  dreary,

•  drudging,

•  dry,

•  dull,

•  dusty,

•  flat,

•  heavy,

•  ho-hum,

•  humdrum,

•  jading,

•  jejune,

•  leaden,

•  mind-numbing,

•  monochromatic,

•  monotonous,

•  numbing,

•  old,

•  pedestrian,

•  ponderous,

•  slow,

•  stale,

•  stodgy,

•  stuffy,

•  stupid,

•  tame,

•  tiresome,

•  tiring,

•  uninteresting,

•  wearisome,

•  weary,

•  wearying

•  Antonyms : 

•  absorbing,

•  engaging,

•  engrossing,

•  gripping,

•  interesting,

•  intriguing,

•  involving,

•  riveting